K-water supplies about 50% of drinking water in Korea. The aging of the waterworks facility has become worse. The maintenance cost has more than doubled for the last decade. However, the available budget is always limited. Reasonable investment decisions are needed. For this reason, K-water developed a decision-making method to replace old facilities using big data such as diagnosis results, real-time data, and etc. This method makes it possible to predict the condition assessment and the remaining life of facilities scientifically. As a result of the pilot application, it showed a high concordance rate (97%) with the site replacement plan.

In addition, K-AMS, K-water-Asset Management System, was developed to support rapid decision-making and improve user convenience, resulting in expanding the asset management nationwide. All data about the condition of facilities were linked online to K-AMS, and user interface was completed so that anyone can conveniently check the objective degree of aging and remaining life of assets as well as an annual replacement plan for individual workplaces. Through a pilot operation, K-water plans to expand nationwide until 2027. If the asset management system is expanded to all facilities, it is expected that 7.2% of annual maintenance budget will be saved.